New Functions in Version V4.02

3

Configuring Hardware

New CPU Parameters

There are many new components in version 4.02; for example, racks, C7 control systems, or CPUs in the hardware catalog. It is not possible to list all the updates or changes within the scope of this supplement; instead, only the new CPU parameters (which are relevant to the operation of the latest CPUs) are covered:

CPU Parameter

Remarks

 

 

Test operation/

Can be set in the ªProtectionº tab.

process operation

In process operation, debugging functions such as ªprogram

(see also

statusº or ªmonitoring/modifying variablesº are limited to

Chapter 9)

prevent the permissible increase in the scan cycle time from

 

being exceeded. For example, call conditions are not

 

permitted in the program status, and the status display for a

 

programmed loop is aborted on return.

 

It is not possible to debug with breakpoints in process

 

operation, nor can you execute a program step-by-step.

 

In test operation, all programming device/PC debugging

 

functions can be used without restriction, including those

 

which result in increases in the scan cycle time.

 

 

Protection level

Can be set in the ªProtectionº tab. Write access, and read

 

and write access to the CPU can be made dependent on the

 

use of a password. The password is set in this tab.

 

 

Improved Copy Function

If you hold the CTRL key down and select several modules or DP slaves, you can then paste these modules/DP slaves at another location.

Before pasting copied DP slaves, you must select the DP master system to which the DP slaves are to be ªattached.º

4

Supplement to the STEP 7 User Manual V4.0

C79000-Z7076-C552-01

Page 4
Image 4
Siemens C79000-Z7076-C552-01 user manual New CPU Parameters, Improved Copy Function